Is flying dangerous? How much do the world's cows weigh? And what makes people happy? From earth's nations and inhabitants, through the fuels and foods that energize them, to the transportation and inventions of our modern world - and how all of this affects the planet itself - in Numbers Don't Lie, Professor Vaclav Smil takes us on a fact-finding adventure, using surprising statistics and illuminating graphs to challenge lazy thinking. Packed with 'Well-I-never-knew-that' information and with fascinating and unusual examples throughout, we find out how many people it took to buil Numbers Don't Lie - Vaclav Smil od authora Vaclav Smil a nakladatelství za skvělé ceny na e-shopu Martinus. cz.